* {
  margin: 0;
  padding: 0;
}
body {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background-image: linear-gradient(45deg, #ff9a9e 0%, #fad0c4 99%, #fad0c4 100%);
  cursor: url('../arrest/default.cur'), auto;
}
a {
  cursor: url('../arrest/default.cur'), auto;
}
.panel-content {
  width: 100%;
  height: auto;
}
.panel-header {
  width: 100%;
  height: 60px;
  padding: 15px 15px;
  line-height: 30px;
  box-sizing: border-box;
  margin-bottom: 15px;
  border-bottom: 1px solid #ffffff;
}
.panel-footer {
  width: 100%;
  height: 60px;
  padding: 15px 15px;
  line-height: 30px;
  box-sizing: border-box;
  margin-top: 15px;
  border-top: 1px solid #ffffff;
}
/* 超小屏幕（手机，小于 768px） */
@media (max-width: 720px) {
  .sm-panel {
    overflow: hidden;
    width: 480px;
    padding: 0 0;
    border-radius: 10px;
    margin: 50px auto;
    background-color: rgba(255, 255, 255, 0.5);
    box-sizing: border-box;
  }
}
@media (min-width: 720px) {
  .sm-panel {
    overflow: hidden;
    width: 700px;
    padding: 0 0;
    border-radius: 10px;
    margin: 50px auto;
    background-color: rgba(255, 255, 255, 0.5);
    box-sizing: border-box;
  }
}
/* 小屏幕（平板，大于等于 768px） */
@media (min-width: 768px) {
  .s-panel {
    overflow: hidden;
    width: 740px;
    padding: 0 0;
    border-radius: 10px;
    margin: 50px auto;
    background-color: rgba(255, 255, 255, 0.5);
    box-sizing: border-box;
  }
}
/* 中等屏幕（桌面显示器，大于等于 992px） */
@media (min-width: 992px) {
  .m-panel {
    overflow: hidden;
    width: 960px;
    padding: 0 0;
    border-radius: 10px;
    margin: 50px auto;
    background-color: rgba(255, 255, 255, 0.5);
    box-sizing: border-box;
  }
}
/* 大屏幕（大桌面显示器，大于等于 1200px） */
@media (min-width: 1200px) {
  .b-panel {
    overflow: hidden;
    width: 875px;
    padding: 0 0;
    border-radius: 10px;
    margin: 50px auto;
    background-color: rgba(255, 255, 255, 0.5);
    box-sizing: border-box;
  }
}
